F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
204/91.33
F16L 58/10 (2006.01) B29C 35/08 (2006.01) B29C 63/00 (2006.01) B29C 63/36 (2006.01) F16L 55/165 (2006.01)
Patent
CA 1254852
ABSTRACT The present invention provides that in the lining of a pipeline or passageway using a flexible lining comprising a resin absorbent felt, the felt is impregnated with a light curing resin, and light radiation is used for effecting the resin cure. The resin and felt are selected so as to be of similar refractve indices, and so that the resin and fibres are substantially transparent to the curing light radiation which is used. The lining is pre-impregnated and then contained in a bag, envelope or sachet of opaque material to prevent it from curing prematurely.
471188
Insituform Holdings Limited
Riches Mckenzie & Herbert Llp
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